02

2023-06

Common faults and treatment of power cables

To improve the technical level of cable fault testing, different methods should be adopted for different fault properties, and new technologies and new equipment should be continuously introduced. At the same time, experience should be explored on new equipment to develop new functions. Such as the testing technology that sends audio signal to the cable and receives the signal at the fault point

2023-06-02

02

2023-06

How can we really distinguish between good and bad quality cables and wires?

It may be more difficult to detect if the meter is tampered with, because customers generally do not have the equipment to actually measure the meter, and the same method of weighing can be used to know whether the cable is meter. Or it is also a good way to let the factory print the rice mark when producing, but it should be noted that there is no way to print the rice mark on the wire with a diameter of less than 5mm.

2023-06-02

02

2023-06

Will the ampacity of the cables be reduced when a large number of cables are laid in groups?

When a large number of cables are laid in groups, the current carrying capacity of the cables is reduced due to mutual heating. Sometimes it is necessary to consider replacing cables with large specifications with two or more parallel cables of smaller specifications, because cables with large cross-sections will reduce the carrying capacity per unit cross-section due to skin effect and proximity effect

2023-06-02

02

2023-06

Wires and cables are just a general term. What are their similarities and differences?

A wire is a wire used to transmit electrical energy or electrical signals, and a cable is usually an inner core composed of two or more mutually insulated wires, and the outer part is covered with an insulation and reinforcement layer to transmit electrical energy or electrical signals. wire. In layman's terms, wires are collectively referred to as wires.

2023-06-02

02

2023-06

The difference between WDZ cable and WDZN cable

The main feature of WDZN fire-resistant cables is that in addition to the ability to transmit power under normal working conditions, the cables can still maintain normal operation for a certain period of time when they are on fire. They are suitable for nuclear power plants, subways, tunnels, high-rise buildings, etc. A place related to lifesaving.

2023-06-02

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